Problem Display
PID: 157005 (3B4/4K3/2p1p3/3k4/8/3B4/8/Q7 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Seven Chess Notes, 2015

3B4/4K3/2p1p3/3k4/8/3B4/8/Q7

#2

4 + 3


5454 Near Snap 2016
15148 Sadier Collection 2016

SOLUTION


  • SOUND
  • Tries
    • 1.Bb6?
      • threat
        • 2.Qd4#
      • 1...e5
        • 2.Qa2#
      • 1...c5!
    • 1.Qc3?
      • 1...e5
        • 2.Qc4#
      • 1...c5!
  • Keys
    • 1.Qa4!
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke5
        • 2.Qe4#
      • 1...c5
        • 2.Qe4#
      • 1...e5
        • 2.Qc4#

Anticipated by 12444(1979)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(A)
      • Vars
        • P(c);SBLOCK::QAB(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Vars
        • P(c);SBLOCK::QAB1(A)
      • Refutation
        • P(b);
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • P(b);SBLOCK::QAB1(A)
      • P(c);SBLOCK::QAB1(A)


Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).